Susilawati S, Doyan A, Muliyadi L. Synthesis of M-Hexaferrites Material Based on Natural Iron Sand with Metal Co Doping Using the Coprecipitation Method. jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2020 Nov. 17 [cited 2024 Apr. 25];7(1):1-4. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/461